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dc.contributorTroch, Peteren_US
dc.contributorBreshears, Daviden_US
dc.contributorHuxman, Travisen_US
dc.contributorSwitanek, Matthewen_US
dc.contributorDurcik, Matejen_US
dc.contributorCobb, Neilen_US
dc.creatorGuardiola-Claramonte, Men_US
dc.identifier.citationM Guardiola-Claramonte, Peter Troch, David Breshears, Travis Huxman, Matthew Switanek, Matej Durcik, Neil Cobb. (6/9/2011). Decreased streamflow in semi-arid basins following drought-induced tree die-off: A counter-intuitive and indirect climate impact on hydrology. Journal of Hydrology, 406 (3-4), pp. 225-233.en_US
dc.description.abstractDrought- and infestation-related tree die-off is occurring at regional scales and is projected to increase with global climate change. These large-scale changes in vegetation are expected to influence hydrological responses, but the ecohydrological consequences of die-off have rarely been studied empirically and consequently remain uncertain. Here we evaluate observed hydrologic responses to recent regional-scale die-off of piñon pine (Pinus edulis) in Southwestern USA. Basins with the most tree die-off showed a significant decrease in streamflow over several years following die-off, and this decrease was not attributable to climate variability alone. The results are counterintuitive compared to responses to reductions in tree cover by harvest that have shown an increase in streamflow, although such increases are more substantial for locations with higher precipitation than where the piñon pine die-off occurred. We are unable to isolate the cause of the increase, but note that it is consistent with a reported increase in understory herbaceous cover post-die-off and associated increase in solar radiation reaching near-ground (below the tree canopy overstory), which together would be expected to reduce overland flow. Our study highlights the need to more fully evaluate hydrological responses to drought-induced tree die-off empirically, in addition to modelling studies. More generally, the result illustrate potential indirect effects of climate on hydrological responses mediated through ecohydrological changes in vegetation, which will need to be considered in future water resources assessments.en_US
dc.publisherElsevier (12 months)en_US
dc.sourceJournal of Hydrology;406,(2011) Pagination 225-233en_US
dc.subjectrunoff coefficienten_US
dc.titleDecreased streamflow in semi-arid basins following drought-induced tree die-off: A counter-intuitive and indirect climate impact on hydrologyen_US
dc.typeJournal Articleen_US
cg.subject.agrovocpinus edulisen_US
cg.subject.agrovocwater yielden_US
cg.contributor.centerUniversity of Arizona - Arizonaen_US
cg.contributor.centerUniversity of Arizona, Biosphere 2 Earthscience - ARIZONA - Biosphere 2en_US
cg.contributor.centerUniversity of Arizona, College of Agriculture and Life Sciences, School of Natural Resources and the Environment - ARIZONA - CALS - SNREen_US
cg.contributor.centerUniversity of Arizona, College of Science Ecology and Evolutionary Biology - ARIZONA - EEBen_US
cg.contributor.centerNorthern Arizona University, College of the Environment, Forestry, and Natural Sciences - NAU - CEFNSen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.coverage.regionNorthern Americaen_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.journalJournal of Hydrologyen_US

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